Tube sheet welding

Details Tube sheet welding Tube sheet welding

1986-04-01

1988-06-07

Ramsey, Kenneth J.

Metal fusion bonding

Process

Using explosive energy

228 25, 29421E, 291574, B23K 2008

Patent

active

047491175

ABSTRACT:
An improved method for the explosive expansion and welding of tubes to tube sheet includes trepanning the rear face of the tube sheet to form integral collars around each tube-receiving bore in the tube sheet. The collars prevent accumulation of corrosive material in a gap between the tube and tube sheet bore, and provide support to the tube wall when the tube is explosively expanded beyond the region of the tube surrounded by the collar.

REFERENCES:
patent: 3698067 (1972-10-01), Feiss
patent: 3717925 (1973-02-01), Hardwick
patent: 3749161 (1973-07-01), Hibbeler
patent: 3774291 (1973-11-01), Snyder
patent: 4226280 (1980-10-01), Hellouin de Cenival
patent: 4527623 (1985-07-01), Baird et al.

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